Messages in this thread Patch in this message | | | Date | Fri, 13 Mar 2020 16:02:49 -0700 | Subject | [PATCH] perf parse-events: fix 3 use after frees | From | Ian Rogers <> |
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Reproducible with a clang asan build and then running perf test in particular 'Parse event definition strings'.
Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/util/parse-events.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index a14995835d85..593b6b03785d 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1449,7 +1449,7 @@ int parse_events_add_pmu(struct parse_events_state *parse_state, evsel = __add_event(list, &parse_state->idx, &attr, NULL, pmu, NULL, auto_merge_stats, NULL); if (evsel) { - evsel->pmu_name = name; + evsel->pmu_name = name ? strdup(name) : NULL; evsel->use_uncore_alias = use_uncore_alias; return 0; } else { @@ -1497,7 +1497,7 @@ int parse_events_add_pmu(struct parse_events_state *parse_state, evsel->snapshot = info.snapshot; evsel->metric_expr = info.metric_expr; evsel->metric_name = info.metric_name; - evsel->pmu_name = name; + evsel->pmu_name = name ? strdup(name) : NULL; evsel->use_uncore_alias = use_uncore_alias; evsel->percore = config_term_percore(&evsel->config_terms); } @@ -1547,7 +1547,7 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state, if (!parse_events_add_pmu(parse_state, list, pmu->name, head, true, true)) { - pr_debug("%s -> %s/%s/\n", config, + pr_debug("%s -> %s/%s/\n", str, pmu->name, alias->str); ok++; } -- 2.25.1.481.gfbce0eb801-goog
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